教師資料查詢 | 類別: 會議論文 | 教師: 李維聰 Wei-tsong Lee (瀏覽個人網頁)

標題:Scalable Video Coding of H.264/AVC Video Streaming with QoS-based Active Dropping in 802.16e networks
學年
學期
發表日期2008/03/25
作品名稱Scalable Video Coding of H.264/AVC Video Streaming with QoS-based Active Dropping in 802.16e networks
作品名稱(其他語言)
著者Chiang, Jen-chun; Lo, Hsiang-fu; Lee, Wei-Tsong
作品所屬單位淡江大學電機工程學系
出版者AINA
會議名稱The IEEE 22nd International Conference on Advanced Information Networking and Applications (IEEE AINA 2008)
會議地點Okinawa, Japan
摘要Multimedia applications over mobile wireless network are becoming popular in recent years. High video quality depends on the wide bandwidth but the wide bandwidth restricts the number of users in the network system. Effective bandwidth utilization is the major problem in wireless network because the bandwidth resource in wireless environment is limited and precious. For this reason, we propose an active dropping mechanism to deal with the effective bandwidth utilization problem. In the proposed mechanism, if the network loading exceeds the threshold, the dropping mechanism starts to drop the enhancement layer data for low level user and the dropping probability is varying with the different network loading. For the multimedia application, we use the characteristic of the scalable video coding (SVC) extension of H.264/AVC standard to provide different video quality for different level user. By the dropping mechanism, base station increases the system capability and users can obtain better quality of service when the system is under heavy loading. In this paper, we study the network platform of the 802.16e standard and add the QoS-based active dropping mechanism to the MAC layer. In the simulation results, the system capability that releases bandwidth by dropping mechanism and service quality of users are observed.
關鍵字
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間20080325~20080328
通訊作者
國別日本
公開徵稿
出版型式紙本
出處The IEEE 22nd International Conference on Advanced Information Networking and Applications (IEEE AINA 2008), GinoWan,pp.1450 - 1455
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